Morton’s Neuroma — Causes, Diagnosis, and Treatment Options

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✅ Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist · Last updated April 6, 2026

Morton’s Neuroma — Causes, Diagnosis, and Treatment Options

Morton’s Neuroma — Why That Burning Between Your Toes Might Not Be What You Think

Morton’s neuroma is a painful condition involving thickening of the tissue around the digital nerve that runs between the metatarsal heads, most commonly between the third and fourth toes. Despite its name, it is not a true neuroma (benign nerve tumor) but rather perineural fibrosis — a fibrous thickening of the nerve sheath from chronic compression and irritation. The characteristic symptoms — burning, sharp, or electric shock-like pain in the forefoot, sometimes with a sensation of walking on a pebble or a bunched-up sock — are caused by compression of the thickened nerve between the metatarsal heads during weight-bearing.

Who Gets Morton’s Neuroma and Why

Morton’s neuroma is significantly more common in women than men, largely because narrow-toe-box and high-heeled footwear compresses the metatarsal heads together and transfers weight onto the forefoot. The third intermetatarsal space is most commonly affected because the digital nerve in this space is larger than in other spaces (formed by a junction of branches from both the medial and lateral plantar nerves) and has less room to accommodate swelling. Activities that involve repetitive forefoot loading — running, cycling, ballet — are also associated with increased risk. Flat feet with excessive pronation create abnormal metatarsal spread forces that can irritate the nerve.

Diagnosis — Clinical and Imaging

Diagnosis is primarily clinical. The Mulder’s click test — squeezing the metatarsal heads together while pressing on the intermetatarsal space — reproduces the characteristic click and pain in most cases. Direct pressure in the third interspace reproduces symptoms. Ultrasound provides excellent visualization of Morton’s neuroma with sensitivity and specificity comparable to MRI, at far lower cost. MRI is reserved for equivocal cases or pre-surgical planning. The minimum neuroma size generally considered symptomatic is approximately 5mm on imaging, though symptoms do not always correlate linearly with size.

Conservative Treatment Hierarchy

Conservative management resolves symptoms in 20-30% of patients and meaningfully reduces them in a further 30-40%, making it a worthwhile first step before invasive treatment. Footwear modification — wider toe box, lower heel, softer sole — is the most important intervention. Metatarsal pads placed proximal to the metatarsal heads spread the metatarsals apart, reducing nerve compression. Custom orthotics incorporating a metatarsal pad provide a more consistent platform. Activity modification reduces loading. Corticosteroid injection provides significant short-term relief in 50-60% of patients but recurrence rates at 1 year are high. Sclerosing alcohol injections have shown promising long-term results in some series.

Surgical Treatment

Surgery is considered after 3 to 6 months of conservative care without adequate relief. The standard procedure is neuroma excision through a dorsal or plantar approach — the affected nerve segment and its associated fibrosis are removed. Success rates are high: 80-85% of patients report significant long-term improvement. The main complication is permanent numbness in the affected toe cleft, which most patients find acceptable given the severity of pre-surgical pain. Dorsal approach has slightly higher recurrence risk but avoids plantar scarring; plantar approach provides better visualization but creates a plantar scar that may be sensitive with weight-bearing.

Differential Diagnosis — Other Causes of Forefoot Pain

Morton’s neuroma is commonly confused with several other conditions. Metatarsalgia (overloading of the metatarsal heads) causes diffuse ball-of-foot pain without the nerve symptoms. Stress fractures of the metatarsal shafts cause focal bone tenderness that worsens with direct bone palpation. Metatarsophalangeal joint capsulitis (second toe) causes pain at the toe base with a positive drawer test. Plantar plate tears cause similar forefoot pain with dorsal toe deviation. Accurate diagnosis is important because treatment differs — particularly because corticosteroid injection for metatarsal stress fracture would be harmful rather than helpful.

Morton’s Neuroma and Intermetatarsal Bursitis: Treating the Complete Picture

Morton’s neuroma and intermetatarsal bursitis are intimately related conditions that frequently coexist. The intermetatarsal bursa — a small fluid-filled sac positioned between the metatarsal heads adjacent to the common digital nerve — becomes inflamed from the same compressive and shear forces that cause neuroma formation. On MRI, a combined neuroma-bursa complex (sometimes called a “bursoma” or intermetatarsal cyst) often appears larger than the nerve component alone, explaining why some patients have significant symptoms despite a relatively small underlying neuroma. Ultrasound can dynamically demonstrate fluid within the bursa and compression of the nerve during metatarsal squeeze.

Corticosteroid injection for Morton’s neuroma targets the bursal inflammation component as well as perineural inflammation — a significant part of why injections provide effective short-term relief for combined neuroma-bursitis presentations. When the bursal component is substantial (on ultrasound or MRI), ultrasound-guided aspiration of the bursal fluid and corticosteroid instillation can provide more durable relief than injection without aspiration. Alcohol sclerosing injection addresses both the neural and perineural tissue components. Surgical neurectomy removes the nerve-bursa complex together, addressing both components definitively. At Balance Foot & Ankle in Howell and Bloomfield Township, we use in-office diagnostic ultrasound to characterize the nerve-bursa complex before selecting the most appropriate treatment approach for each patient’s specific anatomy.

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Related Treatment Guides

• Morton’s Neuroma Treatment
• Plantar Fasciitis & Heel Pain Treatment
• Custom 3D Orthotics
• Sports Foot & Ankle Injury Treatment

Michigan patients experiencing foot or ankle problems can schedule an appointment at Balance Foot & Ankle — with locations in Howell (4330 E Grand River) and Bloomfield Township (43494 Woodward Ave #208). Call (810) 206-1402 for same-week availability.

In-Office Treatment at Balance Foot & Ankle

If home care isn’t resolving your Morton’s neuroma, a visit with a board-certified podiatrist is the fastest path to accurate diagnosis and a personalized plan. At Balance Foot & Ankle Specialists, Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin offer same-day and next-day appointments at both our Howell and Bloomfield Township offices. We perform on-site diagnostic ultrasound, digital X-ray, conservative care, advanced regenerative treatments, and minimally invasive surgery when indicated.

Call (810) 206-1402 or request an appointment online. Most insurance plans accepted, including Medicare, Blue Cross Blue Shield, Aetna, Cigna, and United Healthcare.

Differential Diagnosis: What Else Could It Be?

Several conditions share symptoms with Morton’s Neuroma and are commonly misdiagnosed in the first office visit. Considering these alternatives is part of every Balance Foot & Ankle exam:

• Capsulitis (2nd MTP). Pain at 2nd-toe base rather than between toes; drawer test positive.
• Stress fracture. Single-point tenderness over a metatarsal shaft, not between toes.
• Freiberg’s infraction. AVN of metatarsal head, classic radiograph flattening.

If your symptoms don’t fit the textbook pattern, ask your podiatrist which differentials they ruled out — that conversation often shortcuts months of trial-and-error treatment.

Most Common Mistake We See

The most common mistake we see is: Adding a cushioned insole instead of a metatarsal pad. Fix: place the metatarsal pad PROXIMAL to (behind) the metatarsal heads — not directly under them.

Warning Signs That Need Same-Day Care

More questions patients ask

What causes heel pain?

Heel pain most commonly results from plantar fasciitis (inflammation of the plantar fascia ligament), which accounts for approximately 80% of cases. Other causes include Achilles tendinitis, heel spurs, stress fractures, Baxter's nerve entrapment, and fat pad atrophy. Dr. Biernacki performs a thorough biomechanical evaluation to identify the precise cause. Call 810-206-1402 for a same-day appointment.

How long does plantar fasciitis take to heal?

With proper treatment, most plantar fasciitis cases improve within 6-12 weeks. Conservative treatments include custom orthotics, stretching protocols, physical therapy, and corticosteroid injections. For persistent cases beyond 6 months, Dr. Biernacki offers advanced options including shockwave therapy and minimally invasive procedures with 90%+ success rates.

Should I see a podiatrist for heel pain?

Yes. A board-certified podiatrist like Dr. Biernacki can accurately diagnose the cause of heel pain using X-rays and diagnostic ultrasound, ruling out stress fractures and other serious conditions. Self-treatment with over-the-counter insoles often delays proper treatment and can worsen the condition. Early intervention leads to faster recovery.

Still have a question about coverage or cost? Book online and we will check your benefits before your visit: Book in Howell · Book in Bloomfield Township. Prefer to talk it through first? Call (810) 206-1402.